Binocular Integration of Perceptually Suppressed Visual Information in Amblyopia.


Journal

Investigative ophthalmology & visual science
ISSN: 1552-5783
Titre abrégé: Invest Ophthalmol Vis Sci
Pays: United States
ID NLM: 7703701

Informations de publication

Date de publication:
02 09 2021
Historique:
entrez: 13 9 2021
pubmed: 14 9 2021
medline: 29 9 2021
Statut: ppublish

Résumé

The purpose of this study was to assess whether motion information from suppressed amblyopic eyes can influence visual perception. Participants with normal vision (n = 20) and with amblyopia (n = 20; 11 anisometropic and 9 strabismic/mixed) viewed dichoptic, orthogonal drifting gratings through a mirror stereoscope. Participants continuously reported form and motion percepts as gratings rivaled for 60 seconds. Responses were binned into categories ranging from binocular integration to complete suppression. Periods when the grating presented to the nondominant/amblyopic eye was suppressed were analyzed further to determine the extent of binocular integration of motion. Individuals with amblyopia experienced longer periods of non-preferred eye suppression than controls. When the non-preferred eye grating was suppressed, binocular integration of motion occurred 48.1 ± 6.2% and 31.2 ± 5.8% of the time in control and amblyopic participants, respectively. Periods of motion integration from the suppressed eye were significantly non-zero for both groups. Visual information seen only by a suppressed amblyopic eye can be binocularly integrated and influence the overall visual percept. These findings reveal that visual information subjected to interocular suppression can still contribute to binocular vision and suggest the use of appropriate optical correction for the amblyopic eye to improve image quality for binocular combination.

Identifiants

pubmed: 34515731
pii: 2777894
doi: 10.1167/iovs.62.12.11
pmc: PMC8444466
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

11

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Auteurs

Amy Chow (A)

Department of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada.

Andrew E Silva (AE)

Department of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada.

Katelyn Tsang (K)

Department of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada.

Gabriel Ng (G)

Mount Pleasant Optometry Centre, Vancouver, British Columbia, Canada.

Cindy Ho (C)

Mount Pleasant Optometry Centre, Vancouver, British Columbia, Canada.

Benjamin Thompson (B)

Department of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, Canada.
Center for Eye and Vision Research, 17W Science Park, Hong Kong.
Liggins Institute, University of Auckland, Auckland, New Zealand.

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